Thomas evans



IT.EVANS.

(No Model.)

LAMP.

Patented Mar. 3, 1885.

S E S S E N W W kmy INVENTOR UNITED STATES PATENT OFFICE.

THOMAS EVANS & 00., OF SAME PLACE.

LAMP.

SPECIFICATION forming part of Letters Patent No. 313,192, dated March 3,1885.

Application filed April 30, 1884. (No model.)

To all whom it may concern:

Be it known that I, THOMAS EVANS, a citizen of the United States,residing at Pittsburg, county of Allegheny, State .of Pennsylvania, haveinvented or discovered a new and useful Improvement in Lamps; and I dohereby declare the following to be a full, clear, concise, and exactdescription thereof, reference being had to the accompanyingdrawings,making a part of this specification, in which, likeletters indicatinglike parts Figure 1 is a view in side elevation ofa lampembodyingmyinvention. Fig.2isasectional View of a mold for formingthelampbody, the lamp-body being shown in section within the mold. Fig.3is a top plan View of the mold.

My invention relates to the construction of the body of that class oflamps which are supported while in use in the rings or cups of a bracketor chandelier.

The rings or cups which are attached to brackets or chandeliers forholding lamps are made of two sizes, and heretofore the lampbodies havebeen made of corresponding sizes with a single seat fitting the ring orcup; consequently on the breakage of either the ring or lamp, it isnecessary that a ring or lamp of the same size should be obtained, whichcannot always be conveniently done.

The object of my invention is to so construct the lamp-bodies that theywill fit both sizes of rings or cups; and to this end my inventionconsists in the construction of a lamp-body, all as more fullyhereinafter described and claimed.

In the drawings, A indicates a lamp-body whose general outline is thesame as those now in general use having the usual perforated projection,a, for the attachment of the burner and the fillingopening b. In place,however, of forming one seat on the under tapering side of the body forthe ring or cup, I form two of such seats, a and d, of differentsizes,as shown, the seat 0 being adapted to fit in the larger or No. 3ring or cup, and the seat d to fit the smaller or No.2 ring or cup,thereby adapting the body to fit either size of ring or cup.

B represents a hollow mold made of three parts, 6, e, and c ,as isusual, hinged together, as shown atff, and provided with handles 72 5cand h. This mold when in use rests upon a bed, 0, which is provided withthe projection it under cut at its periphery, and the mold iscorrespondingly recessed on its under side so as to fit around thisprojection when closed. This top of this projection is constructed onits upper surface so as to form the bottom of the lamp. On theinwardly-tapering sides of the mold are formed the grooves Z Z, in whichduring the molding of the lamp-body are formed the seats cd for the ringor cup.

I am aware that it is not new to form lampbowls with a single seat, theportion of the bowl below such seat being made tapering, as shown inPatents Nos. 160,848 and 123,379; and I am also aware that lamp-bowlshave been made with two ornamental curved beads on their lower portions.such beads not being designed, spaced, or constructed to fit standardsizes ot'supporting rings or cups-as is the case in the bowl describedand claimed in this application.

I claim herein as my invention- A lamp-body, A, having the seats 0 and(Z suitably spaced and constructed to fit the diffcrent standard sizesof rings or cups of a chandelier or bracket, substantially as set forth.I

In testimony whereof Ihavc hereunto set my hand.

THOMAS EVANS.

Witnesses: S. HARVEY THOMPSON, DARWIN S. WOLOOTT.

